Regulating device for tapped turbines.



@www y REGULATING DEVICE POE TAPPED TURBINES.

APPLIUATION 'LED MAE. 21.,`1912.

Patened Het. 21, w13.

itnesse @amr - another to alter the supply of steam. so as to live 'steam supply main @sono roanne, or BERLIN,

purposes is Withdrawn craby ot the piston type,

A GORPORTION remmer GERMANY, nssrouon ro GNRAL nrlnernrc contraria,

or Nit-W Youn.

RnGuiiA'iIN-s nnv'icii non rerP'Dh Tunnnns.

appncation sie@ time si,

To all whom t may concern:

Be it known `that I, GEORG Forum', a subject of the King-of Prussia, residing at Ber.y lin, Germany, have invented .certain nevi7 and useful-Improvements in Regulating Device's' for4 Tapped Turbines, of which the following is a specification.

rThis inventibn relates to elastic-fluid tur bines or engines from which a supply ot steam at relatively low pressure is taken for' heating or other industrial purposes after the steam vhas had' its pressure reduced by doing work in the preceding portion of the turbine by driving the load. In many such cases it is necessary that the pressure of the steam at the place of its consumption for heat-ing or the like be kept approximately' uniform. The resent invention aims to accomplish this the provision of means whereby the Wit drawa intermediate or other point oi' the turbine is caused to occur from a stage or region of higher or lower pressure, depending uponl the steam pressure prevailing in agiven portion of the turbine The pipe through which the industrial steam is Withdrawn iscontrolled by a suitable valve, adapted to place such pipe in communication with one or another' ot several stages of the turbine or with the live steam supply tothe initial stage or region of the turbine. This valve is automatically shifted from one position to maintain the pressure in the industrialI system. The automatic shifting of the valve is effected by a movable abutment exposed to the steam pressure in one of the stages or regions of the turbine, so that said abutment will ,respond to pressure changes' in said stage and will therefore shift the valve as said pressure varies.

The accompanying drawing is a diagrammatic representatin of a multistage turbine shown inlongitudinal section and equipped with my invention.

The turbine has 2, bucket wheels .3 mounted on said shaft between the stationary diaphragme 4 and the 5 controlled by a valve 6 which governed by a speed-responsive device 7. Steain for industrial through the pipe 8 which communicateswith a chest 9 in rwhich Said valve is prefas shown at 10,

a slide valve is located.

specification of ieders raient.

191s. serial its. assess.

of steam from ann .The pressure 'of thisy piston is opposed by a spring 2Q abut' the usual casing'l., shaft `ieaten/asu oca ai, reis.'

and contains a transverse passage 'll adapt,

ed to register with a plurality of ports l2, 13 and 11i which communicate respectively with three stages of the turbine. Each port is provided with a lcheck 4valve l5 which closes toward the stage from Which said port opens. by a pipe 17 directly with the live stearri main 5. The number` of ports may be varied to suitI the conditions of any given system,v

but if their number is small, it may be" found desirable to introduce into the -heating pipe a pressure-reducing valve -18to maintain the heating pressure as nearly con'- stant. as possible in spite of considerable variations between the ypressures derived 'from the adjacent ports.

The slide valve 10 is operatively connect- An additional port 1G is connectedl Ied With a movable abutment exposed to the steam pressure in one of the stages of the turbine. Such abutment is preferably a pistonv 19 Working in' a cylinder 2O which communicates at one end with thestage' of the turbine selectedyofr examplethe stage 2l. the steam. 'on one side of ting against its other side, and provid'edivith suitable means 23 for adjusting its tension if desired. lhe piston rod 24 is pivotally' connected to one end of a lever 26- and having its other end pivotally'con nected With the slide valve'l0= The operation of the device is as ollbyvs: It, for example, in consequence otii'icreasedl consumption ofiheating steamgthe pressure at the tap point falls, then of coursel the pressure will fall also in the stage 2l. rihe spring piston 19, and this motion is communicated y'the lever 251:0 the slide valve l0, so that the passage 1'1 is brought v into line vv-ith the port opening `from the stage ot next higher pressure.

heating system.to its normal value. inasmuch as the movement of the slide valve 'takes place gradually, the opening of the that great variations et pressure 25 iulcrumed at? 85"' ecA 22 is therefore enabled to move the lThis produces a restera tion .of the pressure or the steam 1n the rie 'tien with the-heating pipe, steam from the main 5 will be fed directly to the heating system.

Inl accordance with the provisions of the patent statutes, I have describedl the principle of operation of my invention, together with the apparatus which I now vconsider to represent the best embodiment thereof; butl I ldesire to have it'unde'rstood that thenapparatus shown is only illustrative, and that the invention can be carried out by other` means. p i Vhat I claim as new anddesire to seeeure by Letters Patent of the United States, is-'- 1. The combination with a turbine provided with a pipe for supplying steam for industrial purposes, of means regulating the flow of steam to lsuch pipe and controlled by the steam pressure prevailing in a given stage of said turbine. l

2. The combination with a turbine provided with a pipe for supplying steam for industrial purposesfof means for regulating the How of steam to such pipe, and a.,

` movable abutment controlling said means and responsiveto variations of pressure in a given stage 'oi said turbine.

3. The combination with a turbine pro- "vided with a pipe for supplying steam for industrial purposes, of means for regulating the flow of steam to such pipe, a piston exposed to the steam pressure in a given stage of. said turbine, v,and operative -connectionsbetween said pistn and the said regulating means.

4. The combination with a turbine having Copies of thispatent inay be obtained for ve .centa-eaeh; by addressing `the .ff

wasmngtn, n.

'a plurality of ports opening from several Stages, a heating pipe,'a valve for putting said pipe pinto communication with one'or another of said ports, and a movable springactuated abutment exposed on one side Ito the pressure of the steam in a given stage of said turbine, and operatively connected Y with said valve.

ing 'a plurality of ports communicating with said engine, or' a conduit for supplying steam for industrial uses, valve means -for regulating the How of steam between the region of the engine for controlling the valve means.

regions of different pressures, of a conduit for delivering steam from a given region for industrial purposes, and means responsive to the ressure in another region for (controlling t e supply of steam to the conuit.

7 The combination with a turbine having stages or regions of' dii'erent pressures, of a conduit for delivering steam from a given stage or regionfor industrial uses, means for regulating the How of steam bev tween said region and the conduit, and a ,means that is responsive to the pressure in a region :other than the Aone from which the conduit receives steam.

In ,witness whereof, I have hereunto set my hand thissecondl day ofMarch, 1912.

4 GEORG roni\inn.v p Witnesses y ALUDWIG Cuntio,l

stages or regions of different pressureyin Tmovable abutment for controlling said 5. The combination with an engine havports and the conduit, and a device respon- 1 sive to the pressure in a given stage or 6. The combination with'an engine having a working passage in which there are- Commissioner of Patents, y 

